Strong thunderstorms are forecast across parts of the Central Plains and Midwest today with damaging wind gusts, large hail, and heavy rainfall the primary threats. Heavy rain and scattered flash flooding is also possible across the Carolinas into Virginia. Elevated to critical fire weather concerns in the Four Corners region as Extreme Heat Warnings remain in effect across the Desert Southwest. Read More >
In the United States new 30-year normals are calculated every ten years. The most recent normals (using 1991-2020 data) are listed below, along with the previous set of normals (from 1981-2010), and the difference between the two normals packages. Click on the images to see larger versions.
Or, click here to see comparisons between the new normals and the previous (1981-2010) set of normals in graphical format for local cities (BWG, FFT, LEX, SDF, LOU).
TEMPERATURE
ANNUAL | ||||||||
1991-2020 | Difference Between Old and New | 1981-2010 | ||||||
Mean | Maximum | Minimum | Mean | Maximum | Minimum | Mean | Maximum | Minimum |
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SEASONAL | |||||||||
1991-2020 | Difference Between Old and New | 1981-2010 | |||||||
Mean | Maximum | Minimum | Mean | Maximum | Minimum | Mean | Maximum | Minimum | |
Spring | ![]() |
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Summer | ![]() |
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Autumn | ![]() |
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Winter | ![]() |
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PRECIPITATION
ANNUAL | |||
Difference Between Old and New | |||
1991-2020 | Percentage Change | Value Difference | 1981-2010 |
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SEASONAL | ||||
Difference Between Old and New | ||||
1991-2020 | Percentage Change | Value Difference | 1981-2010 | |
Spring | ![]() |
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Summer | ![]() |
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Autumn | ![]() |
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Winter | ![]() |
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MONTHLY | ||||
Difference Between Old and New | ||||
1991-2020 | Percentage Change | Value Difference | 1981-2010 | |
January | ![]() |
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February | ![]() |
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March | ![]() |
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April | ![]() |
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May | ![]() |
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June | ![]() |
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July | ![]() |
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August | ![]() |
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September | ![]() |
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October | ![]() |
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November | ![]() |
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December | ![]() |
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DEW POINT
The following maps are from the PRISM Climate Group at Oregon State University
January | February | March | April |
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May | June | July | August |
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September | October | November | December |
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